A vessel aground at night is required to show two red lights in a vertical line as well as （）.<br>A:not under command lights<br>B:restricted in her ability to maneuver lights<br>C:anchor lights<br>D:sidelights and a sternlight

A vessel aground at night is required to show two red lights in a vertical line as well as （）.
A:not under command lights
B:restricted in her ability to maneuver lights
C:anchor lights
D:sidelights and a sternlight

出自：海船船员证

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